Ari Henrik Sihvola (born 1957) is a Finnish electrical engineer and academician, who is a professor emeritus in the Department of Electronics and Nanoengineering at Aalto University. He is the President of the International Union of Radio Science during the triennium of 2023 to 2026.
Born in Valkeala in 1957, Sihvola received Diploma in Engineering, Licentiate, and PhD degrees from Helsinki University of Technology in 1981, 1984 and 1987, respectively. He has held visiting researchership positions at Research Laboratory of Electronics of Massachusetts Institute of Technology, Pennsylvania State University, Lund University, ÃÂcole Polytechnique Fédérale de Lausanne and Paris-Sud University. From 2005 to 2010, he was a professor of Academy of Finland.
His recent interests include electromagnetic theory, complex media, materials modeling, remote sensing and radar applications, as well as engineering education. In 2006, he was named as Fellow of the IEEE "for contributions to the application of theory in electromagnetic complex media and random materials."